Twelve years. All of humanity should be tackling the climate change problem as though their lives depend on it — because they do. Do climate-change deniers not have children and grandchildren? For what reason are they willing to forfeit the welfare of future lives?
Two immediate needs are to convert energy systems from fossil to clean-energy technology and to tax fossil fuels at their source. Converting world energy from fossil to clean energy would stimulate economies and negate the need for developing countries to rely on fossil fuels to build their economies.
Richard Whiteford, Downington, Pa.
The writer is a climate change adviser and board member of World Information Transfer, a nonprofit organization promoting environmental health and literacy.